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<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
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    <title>Document</title>
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<body>
    <table align="center" border="1px" cellpadding="0" cellspacing="0" width="500" height="250">
        <tr>
            <th>姓名</th>
            <th>性别</th>
            <th>年龄</th>
        </tr>
        <tr align="center">
            <td>张三</td>
            <td>男</td>
            <td>12</td>
        </tr>

        <tr align="center">
            <td>李三</td>
            <td>女</td>
            <td>15</td>
        </tr>
        <tr align="center">
            <td>吴三</td>
            <td>男</td>
            <td>11</td>
        </tr>
    </table>
</body>

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